Show NEW DEVICE STOPS PLANES Propeller Reversal Re Plan Used to Make Quick Landings WASHINGTON July II By By The T IJ Associated As Press A A propeller r re reversing re- re reversing device which It Is claimed will permit an airplane to be brought to a stop within twice Its own length alter after It touches the ground has baa been evolved by C. C Francis Jenkins Wash Wash- Washington WashIngton ington Inventor Announcing his new Invention In for tor which a n patent has been Issued I Mr Jenkins sold said yesterday It would now be possible to establish air fields di directly dI- dI dIrectly in cities and on the roofs roots o ot of large buildings and eliminate the slow and costly hauling of ot mall mail ex express X cx- press and passengers from suburban fields to their real destination While the e propeller blade Itself is not new having Ing been used on motor the in inventor declared It had been consid consid- considered considered ered too dangerous for use we on an air air- airplane airplane airplane plane as there was the constant fear that the pilot might pull the controllIng i tag Ing ng lever lev r during flight and since speed i sustains the plane this would mean a 4 swift and sure crash of or the The essence silence new patent he explained Is that the reversing rever ng lever is I so geared that It cannot be moved noved while the plane Is In the air When the airplane strikes the a a. spring automatically releases the safety safely guard on the reversing control and the aviator lator is free to bring his plane to scat rest on the ground deck or orsea ors orsea I sea s almost as Instantaneously as a amId mId Ord ceases flight |